UPSC NDA II 2018 General Ability Solved Paper

Question : 111 of 150

Marks: +1, -0

A ball is released from rest and rolls down an inclined plane, as shown in the following figure, requiring 4s to cover a distance of 100 cm along the plane :

Which one of the following is the correct value of angle 0 that the plane makes with the horizontal? (g=100cm/s2)

[NDA II 2018]

θ=sin−1(1/9⋅8)
θ=sin−1(1/20)
θ=sin−1(1/80)
θ=sin−1(1/100)

Validate

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